The value of the following limit is … limx → 0+ √(x)1 - e2√(x)
Topic-wise GATE CS PYQs with verified steps
GATE CSE 2022 · Q34
Time
Your answerNumerical answer
Solution
Official answer: -0.5 (±0)
CalculusWe need to evaluate the limit:
Let . As , .
Substituting into the limit gives:
This is an indeterminate form of type . Applying L'Hôpital's Rule by differentiating the numerator and the denominator with respect to :
Therefore:
Thus, the value of the limit is -0.5.
Try the question first, then check your work.
Examiner trap
Substitute so that the limit becomes , and then apply L'Hôpital's rule or standard exponential series expansion.
This Calculus previous year question is Q34 of the GATE CSE 2022 paper. Find more GATE CSE PYQs on Calculus in Engineering Mathematics, or browse all GATE CSE PYQs.
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Calculus has 40 GATE CSE PYQs across 25 papers from 2011 to 2026. 11 of them are 1-mark NAT questions like this one, and it is the only one in GATE CSE 2022.
How GATE tests CalculusIndependent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.